body {background: url(../images/login_bg.png) repeat-x #eefaff;}
#cloud {background: url(../images/cloud.png) repeat-x;position: absolute;left: 0;top:0;height: 100%;width:100%;z-index: 10}
#center {width:800px; height:300px;position: absolute;z-index: 30;left:50%; top:50%; margin:-180px 0 0 -400px;}
#code_img {cursor: pointer}
h2 {font-family:  "微软雅黑" !important;}
form label,small {color: #666;text-shadow: 0 1px 1px white}